{
 "cells": [
  {
   "cell_type": "markdown",
   "id": "f9ea74cc",
   "metadata": {},
   "source": [
    "-----------\n",
    "* 2022-8-30\n",
    "* python学习\n",
    "-----------\n",
    "\n",
    "## 笔记\n",
    "### 模块：\n",
    ">> 1. sys模块：用来处理python运行时环境的模块\n",
    ">> 2. os模块：操作系统模块\n",
    ">> 3. datetime模块：处理日期的标准模块  datetime date time timedelta\n",
    "### time模块\n",
    ">> import time\n",
    ">> time.localtime()\n",
    "### type():检查类型  \n",
    "### help():查找模块变量\n",
    " "
   ]
  },
  {
   "cell_type": "markdown",
   "id": "f8e03b90",
   "metadata": {},
   "source": [
    "# 本周学习代码"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "67eea2b8",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "751132\n",
      "This minute seems a little odd.\n",
      "751132\n"
     ]
    }
   ],
   "source": [
    "import datetime\n",
    "\n",
    "print(datetime.datetime.today().microsecond)\n",
    "\n",
    "odds = [ 1, 3, 5, 7, 9, 11, 13, 15, 17, 19,\n",
    "        21, 23, 25, 27, 29, 31, 33, 35, 37,\n",
    "        39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59 ]\n",
    "\n",
    "right_this_minute = datetime.datetime.today() .minute\n",
    "\n",
    "if right_this_minute in odds:\n",
    "    print(\"This minute seems a little odd.\")\n",
    "else:\n",
    "    print(\"Not an odd minute.\")\n",
    "    \n",
    "print(datetime.datetime.today().microsecond)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "645d87da",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Party!\n"
     ]
    }
   ],
   "source": [
    "# 查看星期几\n",
    "import time\n",
    "today = time.strftime(\"%A\")\n",
    "if today == \"Saturday\":\n",
    "    print(\"Party!\")\n",
    "elif today == \"Sunday\":\n",
    "# conditino ? Headache?\n",
    "    if condition == \"Headache\":\n",
    "        print(\"Recover,then rest.\")\n",
    "    else:\n",
    "        print(\"Rest.\")\n",
    "else:\n",
    "    print(\"Work,work,work.\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "0311fa96",
   "metadata": {},
   "source": [
    "# 模块\n",
    "## 1.模块--标准库\n",
    "### 标准库是pytho开发团队为满足python用户日常需求而写好的一些模板，可以直接使用，import模块名称\n",
    "   * sys模块\n",
    "   * os模块\n",
    "   * datetime模块\n",
    "## 2.模块--开源模块(pypi.org)\n",
    "## 3.模块--自定义模块"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "151aafa7",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'3.9.12 (main, Apr  4 2022, 05:22:27) [MSC v.1916 64 bit (AMD64)]'"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import sys\n",
    "sys.version"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "651217ed",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'3.9.12 (main, Apr  4 2022, 05:22:27) [MSC v.1916 64 bit (AMD64)]'"
      ]
     },
     "execution_count": 15,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import sys\n",
    "sys.version"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "6250977a",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'D:\\\\gznfxy2022-2023-1-li\\\\python\\\\2'"
      ]
     },
     "execution_count": 17,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import os\n",
    "os.getcwd()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "id": "46d756a1",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "datetime.date(2022, 8, 30)"
      ]
     },
     "execution_count": 18,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import datetime\n",
    "datetime.date.today()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "c88b483f",
   "metadata": {},
   "outputs": [],
   "source": [
    "# time模块"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "1c803c93",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=10, tm_mday=15, tm_hour=22, tm_min=38, tm_sec=5, tm_wday=5, tm_yday=288, tm_isdst=0)"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import time\n",
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "3187bdab",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1665844686.4146638"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "time.time()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "bfd187e4",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "1980"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "2022-42"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "id": "3a8180c9",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=10, tm_mday=15, tm_hour=14, tm_min=38, tm_sec=7, tm_wday=5, tm_yday=288, tm_isdst=0)"
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "time.gmtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "id": "3983f835",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "52.69678075935028"
      ]
     },
     "execution_count": 27,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "time.time()/60/60/24/365"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 25,
   "id": "0d06a2b8",
   "metadata": {},
   "outputs": [
    {
     "ename": "ModuleNotFoundError",
     "evalue": "No module named 'apple'",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mModuleNotFoundError\u001b[0m                       Traceback (most recent call last)",
      "Input \u001b[1;32mIn [25]\u001b[0m, in \u001b[0;36m<cell line: 1>\u001b[1;34m()\u001b[0m\n\u001b[1;32m----> 1\u001b[0m \u001b[38;5;28;01mimport\u001b[39;00m \u001b[38;5;21;01mapple\u001b[39;00m\n",
      "\u001b[1;31mModuleNotFoundError\u001b[0m: No module named 'apple'"
     ]
    }
   ],
   "source": [
    "import apple"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "faa69faa",
   "metadata": {},
   "source": [
    "### help"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 29,
   "id": "f64c5726",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Help on built-in module time:\n",
      "\n",
      "NAME\n",
      "    time - This module provides various functions to manipulate time values.\n",
      "\n",
      "DESCRIPTION\n",
      "    There are two standard representations of time.  One is the number\n",
      "    of seconds since the Epoch, in UTC (a.k.a. GMT).  It may be an integer\n",
      "    or a floating point number (to represent fractions of seconds).\n",
      "    The Epoch is system-defined; on Unix, it is generally January 1st, 1970.\n",
      "    The actual value can be retrieved by calling gmtime(0).\n",
      "    \n",
      "    The other representation is a tuple of 9 integers giving local time.\n",
      "    The tuple items are:\n",
      "      year (including century, e.g. 1998)\n",
      "      month (1-12)\n",
      "      day (1-31)\n",
      "      hours (0-23)\n",
      "      minutes (0-59)\n",
      "      seconds (0-59)\n",
      "      weekday (0-6, Monday is 0)\n",
      "      Julian day (day in the year, 1-366)\n",
      "      DST (Daylight Savings Time) flag (-1, 0 or 1)\n",
      "    If the DST flag is 0, the time is given in the regular time zone;\n",
      "    if it is 1, the time is given in the DST time zone;\n",
      "    if it is -1, mktime() should guess based on the date and time.\n",
      "\n",
      "CLASSES\n",
      "    builtins.tuple(builtins.object)\n",
      "        struct_time\n",
      "    \n",
      "    class struct_time(builtins.tuple)\n",
      "     |  struct_time(iterable=(), /)\n",
      "     |  \n",
      "     |  The time value as returned by gmtime(), localtime(), and strptime(), and\n",
      "     |  accepted by asctime(), mktime() and strftime().  May be considered as a\n",
      "     |  sequence of 9 integers.\n",
      "     |  \n",
      "     |  Note that several fields' values are not the same as those defined by\n",
      "     |  the C language standard for struct tm.  For example, the value of the\n",
      "     |  field tm_year is the actual year, not year - 1900.  See individual\n",
      "     |  fields' descriptions for details.\n",
      "     |  \n",
      "     |  Method resolution order:\n",
      "     |      struct_time\n",
      "     |      builtins.tuple\n",
      "     |      builtins.object\n",
      "     |  \n",
      "     |  Methods defined here:\n",
      "     |  \n",
      "     |  __reduce__(...)\n",
      "     |      Helper for pickle.\n",
      "     |  \n",
      "     |  __repr__(self, /)\n",
      "     |      Return repr(self).\n",
      "     |  \n",
      "     |  ----------------------------------------------------------------------\n",
      "     |  Static methods defined here:\n",
      "     |  \n",
      "     |  __new__(*args, **kwargs) from builtins.type\n",
      "     |      Create and return a new object.  See help(type) for accurate signature.\n",
      "     |  \n",
      "     |  ----------------------------------------------------------------------\n",
      "     |  Data descriptors defined here:\n",
      "     |  \n",
      "     |  tm_gmtoff\n",
      "     |      offset from UTC in seconds\n",
      "     |  \n",
      "     |  tm_hour\n",
      "     |      hours, range [0, 23]\n",
      "     |  \n",
      "     |  tm_isdst\n",
      "     |      1 if summer time is in effect, 0 if not, and -1 if unknown\n",
      "     |  \n",
      "     |  tm_mday\n",
      "     |      day of month, range [1, 31]\n",
      "     |  \n",
      "     |  tm_min\n",
      "     |      minutes, range [0, 59]\n",
      "     |  \n",
      "     |  tm_mon\n",
      "     |      month of year, range [1, 12]\n",
      "     |  \n",
      "     |  tm_sec\n",
      "     |      seconds, range [0, 61])\n",
      "     |  \n",
      "     |  tm_wday\n",
      "     |      day of week, range [0, 6], Monday is 0\n",
      "     |  \n",
      "     |  tm_yday\n",
      "     |      day of year, range [1, 366]\n",
      "     |  \n",
      "     |  tm_year\n",
      "     |      year, for example, 1993\n",
      "     |  \n",
      "     |  tm_zone\n",
      "     |      abbreviation of timezone name\n",
      "     |  \n",
      "     |  ----------------------------------------------------------------------\n",
      "     |  Data and other attributes defined here:\n",
      "     |  \n",
      "     |  n_fields = 11\n",
      "     |  \n",
      "     |  n_sequence_fields = 9\n",
      "     |  \n",
      "     |  n_unnamed_fields = 0\n",
      "     |  \n",
      "     |  ----------------------------------------------------------------------\n",
      "     |  Methods inherited from builtins.tuple:\n",
      "     |  \n",
      "     |  __add__(self, value, /)\n",
      "     |      Return self+value.\n",
      "     |  \n",
      "     |  __contains__(self, key, /)\n",
      "     |      Return key in self.\n",
      "     |  \n",
      "     |  __eq__(self, value, /)\n",
      "     |      Return self==value.\n",
      "     |  \n",
      "     |  __ge__(self, value, /)\n",
      "     |      Return self>=value.\n",
      "     |  \n",
      "     |  __getattribute__(self, name, /)\n",
      "     |      Return getattr(self, name).\n",
      "     |  \n",
      "     |  __getitem__(self, key, /)\n",
      "     |      Return self[key].\n",
      "     |  \n",
      "     |  __getnewargs__(self, /)\n",
      "     |  \n",
      "     |  __gt__(self, value, /)\n",
      "     |      Return self>value.\n",
      "     |  \n",
      "     |  __hash__(self, /)\n",
      "     |      Return hash(self).\n",
      "     |  \n",
      "     |  __iter__(self, /)\n",
      "     |      Implement iter(self).\n",
      "     |  \n",
      "     |  __le__(self, value, /)\n",
      "     |      Return self<=value.\n",
      "     |  \n",
      "     |  __len__(self, /)\n",
      "     |      Return len(self).\n",
      "     |  \n",
      "     |  __lt__(self, value, /)\n",
      "     |      Return self<value.\n",
      "     |  \n",
      "     |  __mul__(self, value, /)\n",
      "     |      Return self*value.\n",
      "     |  \n",
      "     |  __ne__(self, value, /)\n",
      "     |      Return self!=value.\n",
      "     |  \n",
      "     |  __rmul__(self, value, /)\n",
      "     |      Return value*self.\n",
      "     |  \n",
      "     |  count(self, value, /)\n",
      "     |      Return number of occurrences of value.\n",
      "     |  \n",
      "     |  index(self, value, start=0, stop=9223372036854775807, /)\n",
      "     |      Return first index of value.\n",
      "     |      \n",
      "     |      Raises ValueError if the value is not present.\n",
      "     |  \n",
      "     |  ----------------------------------------------------------------------\n",
      "     |  Class methods inherited from builtins.tuple:\n",
      "     |  \n",
      "     |  __class_getitem__(...) from builtins.type\n",
      "     |      See PEP 585\n",
      "\n",
      "FUNCTIONS\n",
      "    asctime(...)\n",
      "        asctime([tuple]) -> string\n",
      "        \n",
      "        Convert a time tuple to a string, e.g. 'Sat Jun 06 16:26:11 1998'.\n",
      "        When the time tuple is not present, current time as returned by localtime()\n",
      "        is used.\n",
      "    \n",
      "    ctime(...)\n",
      "        ctime(seconds) -> string\n",
      "        \n",
      "        Convert a time in seconds since the Epoch to a string in local time.\n",
      "        This is equivalent to asctime(localtime(seconds)). When the time tuple is\n",
      "        not present, current time as returned by localtime() is used.\n",
      "    \n",
      "    get_clock_info(...)\n",
      "        get_clock_info(name: str) -> dict\n",
      "        \n",
      "        Get information of the specified clock.\n",
      "    \n",
      "    gmtime(...)\n",
      "        gmtime([seconds]) -> (tm_year, tm_mon, tm_mday, tm_hour, tm_min,\n",
      "                               tm_sec, tm_wday, tm_yday, tm_isdst)\n",
      "        \n",
      "        Convert seconds since the Epoch to a time tuple expressing UTC (a.k.a.\n",
      "        GMT).  When 'seconds' is not passed in, convert the current time instead.\n",
      "        \n",
      "        If the platform supports the tm_gmtoff and tm_zone, they are available as\n",
      "        attributes only.\n",
      "    \n",
      "    localtime(...)\n",
      "        localtime([seconds]) -> (tm_year,tm_mon,tm_mday,tm_hour,tm_min,\n",
      "                                  tm_sec,tm_wday,tm_yday,tm_isdst)\n",
      "        \n",
      "        Convert seconds since the Epoch to a time tuple expressing local time.\n",
      "        When 'seconds' is not passed in, convert the current time instead.\n",
      "    \n",
      "    mktime(...)\n",
      "        mktime(tuple) -> floating point number\n",
      "        \n",
      "        Convert a time tuple in local time to seconds since the Epoch.\n",
      "        Note that mktime(gmtime(0)) will not generally return zero for most\n",
      "        time zones; instead the returned value will either be equal to that\n",
      "        of the timezone or altzone attributes on the time module.\n",
      "    \n",
      "    monotonic(...)\n",
      "        monotonic() -> float\n",
      "        \n",
      "        Monotonic clock, cannot go backward.\n",
      "    \n",
      "    monotonic_ns(...)\n",
      "        monotonic_ns() -> int\n",
      "        \n",
      "        Monotonic clock, cannot go backward, as nanoseconds.\n",
      "    \n",
      "    perf_counter(...)\n",
      "        perf_counter() -> float\n",
      "        \n",
      "        Performance counter for benchmarking.\n",
      "    \n",
      "    perf_counter_ns(...)\n",
      "        perf_counter_ns() -> int\n",
      "        \n",
      "        Performance counter for benchmarking as nanoseconds.\n",
      "    \n",
      "    process_time(...)\n",
      "        process_time() -> float\n",
      "        \n",
      "        Process time for profiling: sum of the kernel and user-space CPU time.\n",
      "    \n",
      "    process_time_ns(...)\n",
      "        process_time() -> int\n",
      "        \n",
      "        Process time for profiling as nanoseconds:\n",
      "        sum of the kernel and user-space CPU time.\n",
      "    \n",
      "    sleep(...)\n",
      "        sleep(seconds)\n",
      "        \n",
      "        Delay execution for a given number of seconds.  The argument may be\n",
      "        a floating point number for subsecond precision.\n",
      "    \n",
      "    strftime(...)\n",
      "        strftime(format[, tuple]) -> string\n",
      "        \n",
      "        Convert a time tuple to a string according to a format specification.\n",
      "        See the library reference manual for formatting codes. When the time tuple\n",
      "        is not present, current time as returned by localtime() is used.\n",
      "        \n",
      "        Commonly used format codes:\n",
      "        \n",
      "        %Y  Year with century as a decimal number.\n",
      "        %m  Month as a decimal number [01,12].\n",
      "        %d  Day of the month as a decimal number [01,31].\n",
      "        %H  Hour (24-hour clock) as a decimal number [00,23].\n",
      "        %M  Minute as a decimal number [00,59].\n",
      "        %S  Second as a decimal number [00,61].\n",
      "        %z  Time zone offset from UTC.\n",
      "        %a  Locale's abbreviated weekday name.\n",
      "        %A  Locale's full weekday name.\n",
      "        %b  Locale's abbreviated month name.\n",
      "        %B  Locale's full month name.\n",
      "        %c  Locale's appropriate date and time representation.\n",
      "        %I  Hour (12-hour clock) as a decimal number [01,12].\n",
      "        %p  Locale's equivalent of either AM or PM.\n",
      "        \n",
      "        Other codes may be available on your platform.  See documentation for\n",
      "        the C library strftime function.\n",
      "    \n",
      "    strptime(...)\n",
      "        strptime(string, format) -> struct_time\n",
      "        \n",
      "        Parse a string to a time tuple according to a format specification.\n",
      "        See the library reference manual for formatting codes (same as\n",
      "        strftime()).\n",
      "        \n",
      "        Commonly used format codes:\n",
      "        \n",
      "        %Y  Year with century as a decimal number.\n",
      "        %m  Month as a decimal number [01,12].\n",
      "        %d  Day of the month as a decimal number [01,31].\n",
      "        %H  Hour (24-hour clock) as a decimal number [00,23].\n",
      "        %M  Minute as a decimal number [00,59].\n",
      "        %S  Second as a decimal number [00,61].\n",
      "        %z  Time zone offset from UTC.\n",
      "        %a  Locale's abbreviated weekday name.\n",
      "        %A  Locale's full weekday name.\n",
      "        %b  Locale's abbreviated month name.\n",
      "        %B  Locale's full month name.\n",
      "        %c  Locale's appropriate date and time representation.\n",
      "        %I  Hour (12-hour clock) as a decimal number [01,12].\n",
      "        %p  Locale's equivalent of either AM or PM.\n",
      "        \n",
      "        Other codes may be available on your platform.  See documentation for\n",
      "        the C library strftime function.\n",
      "    \n",
      "    thread_time(...)\n",
      "        thread_time() -> float\n",
      "        \n",
      "        Thread time for profiling: sum of the kernel and user-space CPU time.\n",
      "    \n",
      "    thread_time_ns(...)\n",
      "        thread_time() -> int\n",
      "        \n",
      "        Thread time for profiling as nanoseconds:\n",
      "        sum of the kernel and user-space CPU time.\n",
      "    \n",
      "    time(...)\n",
      "        time() -> floating point number\n",
      "        \n",
      "        Return the current time in seconds since the Epoch.\n",
      "        Fractions of a second may be present if the system clock provides them.\n",
      "    \n",
      "    time_ns(...)\n",
      "        time_ns() -> int\n",
      "        \n",
      "        Return the current time in nanoseconds since the Epoch.\n",
      "\n",
      "DATA\n",
      "    altzone = -32400\n",
      "    daylight = 0\n",
      "    timezone = -28800\n",
      "    tzname = ('中国标准时间', '中国夏令时')\n",
      "\n",
      "FILE\n",
      "    (built-in)\n",
      "\n",
      "\n"
     ]
    }
   ],
   "source": [
    "help(time)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "6e42ff5b",
   "metadata": {},
   "outputs": [],
   "source": [
    "import time"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "0ea24779",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "5"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "time.localtime().tm_wday"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "ca7db6f0",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "今天没有python课，哈哈哈哈哈哈哈，太开心了\n"
     ]
    }
   ],
   "source": [
    "今天 = time.localtime().tm_wday\n",
    "\n",
    "if 今天 == 1:\n",
    "    print(\"今天有python课，时间为,下午2：30-4；50\")\n",
    "else:\n",
    "    print(\"今天没有python课，哈哈哈哈哈哈哈，太开心了\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "4c2621a4",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=9, tm_mday=18, tm_hour=10, tm_min=55, tm_sec=21, tm_wday=6, tm_yday=261, tm_isdst=0)"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import time\n",
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "5da47ad9",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "6"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "time.localtime().tm_wday"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "a5c84675",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "今天不用上课\n"
     ]
    }
   ],
   "source": [
    "今天 = time.localtime().tm_wday\n",
    "\n",
    "if 今天 == 6:\n",
    "    print(\"今天不用上课\")\n",
    "else:\n",
    "    print(\"今天要上课\")"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "e0b598f3",
   "metadata": {},
   "source": [
    "## 赋值\n",
    "## 变量"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "680b09bc",
   "metadata": {},
   "outputs": [],
   "source": [
    "wait_time = 26\n",
    "waittime = 34\n",
    "gf_of_liu = \"lucy\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "7d508cc4",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "int"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type(wait_time)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "1d55ca35",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "str"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type(gf_of_liu)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "e38f31b4",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "26"
      ]
     },
     "execution_count": 7,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "wait_time"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "f3b18405",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "34"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "waittime"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "bea294db",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'lucy'"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "gf_of_liu"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "3509a5f5",
   "metadata": {},
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "invalid syntax (2552301720.py, line 1)",
     "output_type": "error",
     "traceback": [
      "\u001b[1;36m  Input \u001b[1;32mIn [10]\u001b[1;36m\u001b[0m\n\u001b[1;33m    2age = 18\u001b[0m\n\u001b[1;37m     ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m invalid syntax\n"
     ]
    }
   ],
   "source": [
    "# 前面第一位不能为数字\n",
    "2age = 18"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "23ea29f7",
   "metadata": {},
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "invalid syntax (3763175900.py, line 1)",
     "output_type": "error",
     "traceback": [
      "\u001b[1;36m  Input \u001b[1;32mIn [11]\u001b[1;36m\u001b[0m\n\u001b[1;33m    $age = 18\u001b[0m\n\u001b[1;37m    ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m invalid syntax\n"
     ]
    }
   ],
   "source": [
    "# 除了 _ 其他符号不能用\n",
    "$age = 18"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "id": "6c756019",
   "metadata": {},
   "outputs": [
    {
     "ename": "SyntaxError",
     "evalue": "invalid syntax (3341084877.py, line 1)",
     "output_type": "error",
     "traceback": [
      "\u001b[1;36m  Input \u001b[1;32mIn [20]\u001b[1;36m\u001b[0m\n\u001b[1;33m    liu age = 18\u001b[0m\n\u001b[1;37m        ^\u001b[0m\n\u001b[1;31mSyntaxError\u001b[0m\u001b[1;31m:\u001b[0m invalid syntax\n"
     ]
    }
   ],
   "source": [
    "liu age = 18"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "189b9943",
   "metadata": {},
   "source": [
    "#### 变量开头不能是数字，必须是下划线或者字母，变量不能包含空格"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "91741721",
   "metadata": {},
   "source": [
    "## 课堂作业"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "96788752",
   "metadata": {},
   "source": [
    "##### 判断当前是一周中的星期几，如果是星期二，然后打印python课表"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "d5343424",
   "metadata": {},
   "source": [
    "##### 尝试1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "id": "fc3b80b6",
   "metadata": {},
   "outputs": [],
   "source": [
    "import time"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "f83a7b00",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "time.struct_time(tm_year=2022, tm_mon=10, tm_mday=15, tm_hour=22, tm_min=43, tm_sec=33, tm_wday=5, tm_yday=288, tm_isdst=0)"
      ]
     },
     "execution_count": 14,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "time.localtime()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "e3ddcebc",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "5"
      ]
     },
     "execution_count": 15,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "time.localtime().tm_wday"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "03e98c06",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "不用打印python课表\n"
     ]
    }
   ],
   "source": [
    "# 0-6 = 星期一-星期日\n",
    "今天 = time.localtime().tm_wday\n",
    "\n",
    "if 今天 == 1:\n",
    "    print(\"打印python课表\")\n",
    "else:\n",
    "    print(\"不用打印python课表\") "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "f43b4d2f",
   "metadata": {},
   "outputs": [],
   "source": [
    "import time"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "811bd6ab",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "不用打印python课表\n"
     ]
    }
   ],
   "source": [
    "今天 = time.strftime(\"%A\")\n",
    "\n",
    "if 今天 == \"Tuesday\":\n",
    "    print(\"打印python课表\")\n",
    "else:\n",
    "    print(\"不用打印python课表\")"
   ]
  }
 ],
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    "name": "ipython",
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